Archief - PHP: Textbox+Focus

<textarea onfocus="if(this.value=='Geef hier je naam in.') { this.value=''; }">Geef hier je naam in.</textarea>

function InputBehavior(input_id){
	this.input_type = document.getElementById(input_id);
	this.default_value = this.input_type.value;
	this.input_type.onfocus = bind(this, this.alterFocus);
	this.input_type.onblur = bind(this, this.alterFocus);
}

InputBehavior.prototype.alterFocus = function(){
	if (this.input_type.value == this.default_value){
		this.input_type.value = "";
	}else{
		if (this.input_type.value == ""){
			this.input_type.value = this.default_value;
		}
	}
}

function bind(el, func){
   return function() { func.call(el); }
}

window.onload = init;

function init(){

   new InputBehavior('input1id');

}